CVE-2009-0815Typo3 Information Disclosure
TYPO3 leaks a hash secret in an error message
Published May 2, 2022 · Updated Mar 9, 2026 · Also known as DEBIAN-CVE-2009-0815, DEBIAN-CVE-2009-0816, DTSA-193-1, GHSA-c22j-84c7-cm77
Key Facts
Routine patching- CVE-2009-0815 is a medium-severity vulnerability (CVSS 6.9 v4) affecting Typo3, typo3/cms (composer), typo3-src (debian).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 42% probability of exploitation in the next 30 days.
- Fixed versions are available, including typo3-src 4.2.5-1+lenny1, typo3/cms 4.0.12, typo3/cms 4.1.10.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Scores
CVSS v4
6.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS (30-day exploit likelihood)
42%
Higher than 98.6% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
40/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2009-0815
- advisoryGHSA advisory
- advisoryhttps://web.archive.org/web/20091206080208/http://typo3.org/teams/security/security-bulletins/typo3-sa-2009-002
- advisoryhttps://web.archive.org/web/20200915000000*/http://www.securitytracker.com/id?1021710
- advisoryDSA-1720
- advisory[oss-security] 20090210 CVE request: typo3 xss (typo3-sa-2009-002)
Description
The jumpUrl mechanism in class.tslib_fe.php in TYPO3 3.3.x through 3.8.x, 4.0 before 4.0.12, 4.1 before 4.1.10, 4.2 before 4.2.6, and 4.3alpha1 leaks a hash secret (juHash) in an error message, which allows remote attackers to read arbitrary files by including the hash in a request.
Affected Products
26 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Typo3Typo3 | 3.3.x, 3.5.x, 3.6.x, 3.7.x, 3.8.x, 4.0, 4.1, 4.1.0 | n/a |
| typo3/cmscomposer | >= 4.2 | 4.2.6 |
| typo3-srcdebian | See advisory | 4.2.5-1+lenny1 |
Patched Releases
typo3-src
4.2.5-1+lenny1
typo3/cms
4.0.12, 4.1.10, 4.2.6
Timeline
Publicly disclosed
May 2, 2022
Last updated
Mar 9, 2026
Weakness Type
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
- CWE-209 Generation of Error Message Containing Sensitive Information
References
- advisorynvd.nist.gov · CVE-2009-0815
- advisoryGHSA advisory
- advisoryweb.archive.org · typo3-sa-2009-002
- advisoryweb.archive.org · id
- advisoryDSA-1720
FAQ
Common Questions.
The jumpUrl mechanism in class.tslib_fe.php in TYPO3 3.3.x through 3.8.x, 4.0 before 4.0.12, 4.1 before 4.1.10, 4.2 before 4.2.6, and 4.3alpha1 leaks a hash secret (juHash) in an error message, which allows remote attackers to read arbitrary files by including the hash in a request.
Affected: Typo3 versions 3.3.x, 3.5.x, 3.6.x, 3.7.x, 3.8.x, 4.0, 4.1, 4.1.0; typo3/cms (composer) versions >= 4.2; typo3-src (debian). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including typo3-src 4.2.5-1+lenny1, typo3/cms 4.0.12, typo3/cms 4.1.10.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Is CVE-2009-0815 On Your Attack Surface?
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